Support importing `.txt` files as strings (#2660)

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

8 files changed, 70 insertions, 1 deletions

diff --git a/packages/bun-types/globals.d.ts b/packages/bun-types/globals.d.ts
index a9fdc01a1..ebe62bf30 100644
--- a/packages/bun-types/globals.d.ts
+++ b/packages/bun-types/globals.d.ts
@@ -3168,3 +3168,8 @@ declare var module: NodeModule;
 // Same as module.exports
 declare var exports: any;
 declare var global: typeof globalThis;
+
+declare module "*.txt" {
+  var text: string;
+  export = text;
+}
diff --git a/src/bun.js/module_loader.zig b/src/bun.js/module_loader.zig
index 9ec142176..bfdb9462d 100644
--- a/src/bun.js/module_loader.zig
+++ b/src/bun.js/module_loader.zig
@@ -879,7 +879,7 @@ pub const ModuleLoader = struct {
         const disable_transpilying = comptime flags.disableTranspiling();
 
         switch (loader) {
-            .js, .jsx, .ts, .tsx, .json, .toml => {
+            .js, .jsx, .ts, .tsx, .json, .toml, .text => {
                 jsc_vm.transpiled_count += 1;
                 jsc_vm.bundler.resetStore();
                 const hash = http.Watcher.getHash(path.text);
diff --git a/src/bundler.zig b/src/bundler.zig
index 629e377ae..8c9775808 100644
--- a/src/bundler.zig
+++ b/src/bundler.zig
@@ -1454,6 +1454,7 @@ pub const Bundler = struct {
                     },
                 };
             },
+            // TODO: use lazy export AST
             .json => {
                 var expr = json_parser.ParseJSON(&source, bundler.log, allocator) catch return null;
                 var stmt = js_ast.Stmt.alloc(js_ast.S.ExportDefault, js_ast.S.ExportDefault{
@@ -1475,6 +1476,7 @@ pub const Bundler = struct {
                     .input_fd = input_fd,
                 };
             },
+            // TODO: use lazy export AST
             .toml => {
                 var expr = TOML.parse(&source, bundler.log, allocator) catch return null;
                 var stmt = js_ast.Stmt.alloc(js_ast.S.ExportDefault, js_ast.S.ExportDefault{
@@ -1496,6 +1498,30 @@ pub const Bundler = struct {
                     .input_fd = input_fd,
                 };
             },
+            // TODO: use lazy export AST
+            .text => {
+                var expr = js_ast.Expr.init(js_ast.E.String, js_ast.E.String{
+                    .data = source.contents,
+                }, logger.Loc.Empty);
+                var stmt = js_ast.Stmt.alloc(js_ast.S.ExportDefault, js_ast.S.ExportDefault{
+                    .value = js_ast.StmtOrExpr{ .expr = expr },
+                    .default_name = js_ast.LocRef{
+                        .loc = logger.Loc{},
+                        .ref = Ref.None,
+                    },
+                }, logger.Loc{ .start = 0 });
+                var stmts = allocator.alloc(js_ast.Stmt, 1) catch unreachable;
+                stmts[0] = stmt;
+                var parts = allocator.alloc(js_ast.Part, 1) catch unreachable;
+                parts[0] = js_ast.Part{ .stmts = stmts };
+
+                return ParseResult{
+                    .ast = js_ast.Ast.initTest(parts),
+                    .source = source,
+                    .loader = loader,
+                    .input_fd = input_fd,
+                };
+            },
             .wasm => {
                 if (bundler.options.platform.isBun()) {
                     if (!source.isWebAssembly()) {
diff --git a/test/js/bun/util/text-loader-fixture-dynamic-import.ts b/test/js/bun/util/text-loader-fixture-dynamic-import.ts
new file mode 100644
index 000000000..fe22eb5a6
--- /dev/null
+++ b/test/js/bun/util/text-loader-fixture-dynamic-import.ts
@@ -0,0 +1,3 @@
+const { default: text } = await import("./text-loader-fixture-text-file.txt");
+
+console.write(text);
diff --git a/test/js/bun/util/text-loader-fixture-import.ts b/test/js/bun/util/text-loader-fixture-import.ts
new file mode 100644
index 000000000..ec72286ac
--- /dev/null
+++ b/test/js/bun/util/text-loader-fixture-import.ts
@@ -0,0 +1,3 @@
+import text from "./text-loader-fixture-text-file.txt";
+
+console.write(text);
diff --git a/test/js/bun/util/text-loader-fixture-require.ts b/test/js/bun/util/text-loader-fixture-require.ts
new file mode 100644
index 000000000..5fb4102fc
--- /dev/null
+++ b/test/js/bun/util/text-loader-fixture-require.ts
@@ -0,0 +1,3 @@
+// TODO: should .default really be necessary here?
+const { default: text } = require("./text-loader-fixture-text-file.txt");
+console.write(text);
diff --git a/test/js/bun/util/text-loader-fixture-text-file.txt b/test/js/bun/util/text-loader-fixture-text-file.txt
new file mode 100644
index 000000000..299e8b604
--- /dev/null
+++ b/test/js/bun/util/text-loader-fixture-text-file.txt
@@ -0,0 +1 @@
+These are words!
\ No newline at end of file
diff --git a/test/js/bun/util/text-loader.test.ts b/test/js/bun/util/text-loader.test.ts
new file mode 100644
index 000000000..f7d3b2a28
--- /dev/null
+++ b/test/js/bun/util/text-loader.test.ts
@@ -0,0 +1,28 @@
+import { spawnSync } from "bun";
+import { describe, expect, it } from "bun:test";
+import { bunEnv, bunExe } from "harness";
+import { join } from "path";
+
+describe("text-loader", () => {
+  const fixtures = [
+    ["dynamic-import", "text-loader-fixture-dynamic-import.ts"],
+    ["import", "text-loader-fixture-import.ts"],
+    ["require", "text-loader-fixture-require.ts"],
+  ] as const;
+  for (let [kind, path] of fixtures) {
+    describe("should load text", () => {
+      it(`using ${kind}`, () => {
+        const result = spawnSync({
+          cmd: [bunExe(), join(import.meta.dir, path)],
+          env: bunEnv,
+          stdout: "pipe",
+          stderr: "inherit",
+          stdin: "ignore",
+        });
+
+        expect(result.stdout.toString()).toBe("These are words!");
+        expect(result.exitCode).toBe(0);
+      });
+    });
+  }
+});